Matthew 12:35

A good man, out of the good he has accumulated, brings out things that are good, and a bad man, out of what he has accumulated that is bad, brings out things that are bad.

Ephesians 4:29

No bad word must ever pass your lips, but only words that are good and suited to improve the occasion, so that they will be a blessing to those who hear them.

Colossians 4:6

Always put your message attractively, and yet pointedly, and be prepared to give every inquirer a fitting answer.

Treasury of Scripture Knowledge

Summary

The mouth of the righteous speaketh wisdom, and his tongue talketh of judgment.

Bible References

General references

Matthew 12:35
A good man, out of the good he has accumulated, brings out things that are good, and a bad man, out of what he has accumulated that is bad, brings out things that are bad.
Ephesians 4:29
No bad word must ever pass your lips, but only words that are good and suited to improve the occasion, so that they will be a blessing to those who hear them.
Colossians 4:6
Always put your message attractively, and yet pointedly, and be prepared to give every inquirer a fitting answer.